For all of this attention to cooling the oven on the Rb standards, has anyone seen any failures that are attributable to heat?
I sort of doubt it. -Chuck Harris [email protected] wrote:
I monitor and fan cool the base plate, stays nice and constant at 45 C which I can not say with heat sink only. I am considering lowering the base plate to 40 C. I have a heat sink on the base plate with the fan blowing over it. Makes good heat exchanger. I have experimented with heat pipes from Lap Tops but never fit for mechanical reasons. May work with a LPRO's. Al my Rb's are Efratom. A variable speed fan will reduce any ambient temperature influence. That is why I chose to use a fan. Use a dual Op Amp for temp. control. Nothing special. Fans are $ 3.00 I have monitored points inside the Rb's and they are within 1 C over time. Bert Kehren
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